96 results
Gynecomastia - Differential Diagnosis Algorithm
No Testicular Mass on Ultrasound
 • Adrenal Neoplasm
 • Increased Extraglomerular Aromatase
• Leydig Cell Tumor ... • Sertoli Cell Tumor ... Testicular Germ Cell Tumor ... Prolactin • Non-Tumor ... Diagnosis #Algorithm #causes
Mediastinal Mass - Differential Diagnosis Framework

Anterior Mediastinal Mass - 5T’s
 • Thymic neoplasm
 • Teratoma (or
other germ cell tumor ... Bronchogenic cyst/Tumor ... • Bronchogenic tumor ... • Neurogenic tumor ... Mediastinal Mass Symptoms
Bilateral Acute Vision Loss - Differential Diagnosis Algorithm

Complete/ Partial Homonymous Hemianopia
 • Infarct
 • Intracranial Hemorrhage
Hemorrhage • Tumor ... Diagnosis #Algorithm #Causes ... #Ophthalmology
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... Erythropoietin Secreting Tumor ... 90%, Abnormal Abdominal ... Ultrasound High ... Chronic Chest Symptoms
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
osteomyelitis • Tumor ... • Pharyngeal tumor ... degeneration: • Tumor ... aneurysm, Pott puffy tumor ... salivary gland tumor
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• Neurologic symptoms ... a mass as the cause ... Inflammation • Orbital Tumor ... • Aneurysm • Tumor ... #Ophthalmology
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
• Optic Nerve Tumor ... Syndrome): • Tumor ... Diagnosis #Algorithm #Causes ... #Ophthalmology
Causes of Back Pain - Differential Diagnosis Algorithm
Always assess for red flags. If no red flags,
Causes of Back Pain ... constitutional symptoms ... • Fracture • Tumor ... Unresolved Radicular Symptoms ... Diagnosis #Algorithm #Causes
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
allele of RB1 tumor ... allele of RB1 tumor ... Retinoblastoma Signs / Symptoms ... pathophysiology #ophthalmology ... diagnosis #signs #symptoms
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Leukostasis vs Tumor ... high WBC count cause ... /- rasburicase Tumor ... rate or large tumor ... #Leukostasis #Tumor